@article{fdi:010086110,
  title = {{C}ompetitive plant-mediated and intraguild predation interactions of the invasive {S}podoptera frugiperda and resident stemborers {B}usseola fusca and {C}hilo partellus in maize cropping systems in {K}enya},
  author = {{M}utua, {J}. {M}. and {M}utyambai, {D}. {M}. and {A}sudi, {G}. {O}. and {K}hamis, {F}. and {N}iassy, {S}. and {J}alloh, {A}. {A}. and {S}alifu, {D}. and {M}agara, {H}. {J}. {O}. and {C}alatayud, {P}aul-{A}ndr{\'e} and {S}ubramanian, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}ollowing its recent invasion of {A}frican countries, fall armyworm ({FAW}), {S}podoptera frugiperda ({L}epidoptera: {N}octuidae), now co-exists with resident stemborers such as {B}usseola fusca ({L}epidoptera: {N}octuidae) and {C}hilo partellus ({L}epidoptera: {C}rambidae) causing severe damage to maize crops. {D}ue to niche overlap, interspecific interactions occur among the three species, but the mechanisms and degree remain unclear. {I}n this study, we assessed plant-mediated intraspecific and interspecific interactions, predation in laboratory and semi-field settings, and larval field occurrence of {S}. frugiperda and the two stemborer species. {L}arval feeding assays to evaluate competitive plantmediated interactions demonstrated that initial {S}. frugiperda feeding negatively affected subsequent stemborer larval feeding and survival, suggesting induction of herbivore-induced mechanisms by {S}. frugiperda, which deters establishment and survival of competing species. {P}redation assays showed that, at different developmental larval stages, second-sixth instars of {S}. frugiperda preyed on larvae of both {B}. fusca and {C}. partellus. {P}redation rates of {S}. frugiperda on stemborers was significantly higher than cannibalism of {S}. frugiperda and its conspecifics (p < 0.001). {C}annibalism of {S}. frugiperda in the presence of stemborers was significantly lower than in the presence of conspecifics (p = 0.04). {F}ield surveys showed a significantly higher number of {S}. frugiperda larvae than stemborers across three altitudinally different agroecological zones (p < 0.001). {I}n conclusion, this study showed that the invasive {S}. frugiperda exhibited a clear competitive advantage over resident stemborers within maize cropping systems in {K}enya. {O}ur findings reveal some of the possible mechanisms employed by {S}. frugiperda to outcompete resident stemborers and provide crucial information for developing pest management strategies for these lepidopteran pests.},
  keywords = {{KENYA}},
  booktitle = {},
  journal = {{I}nsects},
  volume = {13},
  numero = {9},
  pages = {790 [17 ]},
  year = {2022},
  DOI = {10.3390/insects13090790},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086110},
}